Home / 90,190.98-135,317.55-40,305.51

Finding the Fourth Proportional to 90,190.98, 135,317.55 and 40,305.51

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Solution

The fourth proportional to 90,190.98, 135,317.55 and 40,305.51 is: 60,472.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,190.98 : 135,317.55 = 40,305.51 : x
  2. Step 2: Convert to fraction form
    90,190.98/135,317.55 = 40,305.51/x
  3. Step 3: Cross multiply
    90,190.98x = 135,317.55 × 40,305.51
  4. Step 4: Simplify right side
    90,190.98x = 5,454,042,864.70
  5. Step 5: Solve for x
    x = 5,454,042,864.70/90,190.98
  6. Step 6: Final answer
    x = 60,472.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.